Hi, i've tried the suggestion indicated by dothacker, but when i get to the 10.6.4 i'm having USB problems (none of the ports are working). Also, using time machine to go back to 10.6.3 (yes, i am doing a backup before every upgrade), i'm having boot problems: before doing the post install, obviously i can't boot without the chameleon boot cd. But i can't boot with the cd either, it get stuck in the green-with-dark-apple loading screen, loading animation spinning all the time. Left like that for hours, and didn't loaded the system. Restarted and tried again without success. Will do a time machine to a 10.6.2.

Also, another though: i've noticed that dothacker uses iatkos (it's on his/hers signature). I'm using chameleon. Could that influence somehow?